Color
#673bce
#673bcergb(103, 59, 206)hsl(258, 60%, 52%)oklch(0.495 0.212 290.2)Colors that go with #673bce
Charcoal, Royal Blue and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #673bce: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #673bce's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #673bce in 4 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cornflower Blue #6495ed
shippedCornflower Blue is paired with #673bce in 6 real palettes, including Coca-Cola's brand system and Mastodon hosted on mastodon.social's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #673bce in 6 real palettes, including Gemstone and Netflix's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Light Sky Blue #87cefa
shippedLight Sky Blue is paired with #673bce in 4 real palettes, including Sentry's brand system and Calm's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Medium Slate Blue #7b68ee
shippedMedium Slate Blue is paired with #673bce in 4 real palettes, including ClickUp's brand system and Stripe's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #673bce in 9 real palettes, including Kraken's brand system and Purina Pro Plan's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #673bce
Tints & shades
Harmonies
Contrast
| #673bce as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.79:1 | pass | pass | fail |
|
Aaon black | 3.09:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673bce as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#673bce reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #673bce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/673bce-ad9cc4-dfc44e-291f2d-e9ebf1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md